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service")]),t._v(" "),s("p",[t._v("A print job is a request of printing something in a specific print service.\nIt consists, basically, by:")]),t._v(" "),s("ul",[s("li",[t._v("the data that will be printed  (see "),s("a",{attrs:{href:"https://stackoverflow.com/documentation/java/10178/java-print-service/31199/building-the-doc-that-will-be-printed",target:"_blank",rel:"noopener noreferrer"}},[t._v("Building the Doc that will be printed"),s("OutboundLink")],1),t._v(")")]),t._v(" "),s("li",[t._v("a set of attributes")])]),t._v(" "),s("p",[t._v("After picking-up the right print service instance, we can request the creation of a print job:")]),t._v(" "),s("div",{staticClass:"language-java extra-class"},[s("pre",{pre:!0,attrs:{class:"language-java"}},[s("code",[s("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("DocPrintJob")]),t._v(" printJob "),s("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" printService"),s("span",{pre:!0,attrs:{class:"token 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Are examples of print request attributes:")]),t._v(" "),s("ul",[s("li",[t._v("amount of copies (1, 2 etc),")]),t._v(" "),s("li",[t._v("orientation (portrait or landscape)")]),t._v(" "),s("li",[t._v("chromacity (monochrome, color)")]),t._v(" "),s("li",[t._v("quality (draft, normal, high)")]),t._v(" "),s("li",[t._v("sides (one-sided, two-sided etc)")]),t._v(" "),s("li",[t._v("and so on...")])]),t._v(" "),s("p",[t._v("The print method may throw a "),s("code",[t._v("PrintException")]),t._v(".")]),t._v(" "),s("h2",{attrs:{id:"listening-print-job-request-status-change"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#listening-print-job-request-status-change"}},[t._v("#")]),t._v(" Listening print job request status change")]),t._v(" "),s("p",[t._v("For the most printing clients, is extremely useful to know if a print job has finished or failed.")]),t._v(" "),s("p",[t._v("The Java Print Service API provide some functionalities to get informed about these scenarios.\nAll we have to do is:")]),t._v(" "),s("ul",[s("li",[t._v("provide an implementation for "),s("code",[t._v("PrintJobListener")]),t._v(" interface and")]),t._v(" "),s("li",[t._v("register this implementation at the print job.")])]),t._v(" "),s("p",[t._v("When the print job state changes, we will be notified.\nWe can do anything is needed, for example:")]),t._v(" "),s("ul",[s("li",[t._v("update a user interface,")]),t._v(" "),s("li",[t._v("start another business process,")]),t._v(" "),s("li",[t._v("record something in the database,")]),t._v(" "),s("li",[t._v("or simply log it.")])]),t._v(" "),s("p",[t._v("In the example bellow, we will log every print job status change:")]),t._v(" "),s("div",{staticClass:"language-java extra-class"},[s("pre",{pre:!0,attrs:{class:"language-java"}},[s("code",[s("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("import")]),t._v(" "),s("span",{pre:!0,attrs:{class:"token namespace"}},[t._v("javax"),s("span",{pre:!0,attrs:{class:"token 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Let's see how it works:")]),t._v(" "),s("div",{staticClass:"language-java extra-class"},[s("pre",{pre:!0,attrs:{class:"language-java"}},[s("code",[s("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("import")]),t._v(" "),s("span",{pre:!0,attrs:{class:"token namespace"}},[t._v("javax"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),t._v("print"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),t._v("event"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")])]),s("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("PrintJobEvent")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n"),s("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("import")]),t._v(" "),s("span",{pre:!0,attrs:{class:"token namespace"}},[t._v("javax"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),t._v("print"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),t._v("event"),s("span",{pre:!0,attrs:{class:"token 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